National and international regulations on
electromagnetic compatibility require that
electrical and electronic equipment is
designed to be resistant to induced RF
signals in power lines and data lines.
As radio traffic and RF interference levels
continue to increase all over the world,
the issue becomes one of growing
importance.
Previously, the task of testing equipment
for susceptibility to induced RF was
lengthy and prone to error. The NSG
2070 changes all that. It is one of the first
instruments on the market to offer a
simple, self-contained, self-calibrating
system for fast, effective, reliable testing
for susceptibility to induced RF in power
lines and data lines for both compliance
testing and pre-compliance
characterisation. The system fulfills all
the requirements of IEC 61000-4-6.
The NSG 2070-1 generator unit
incorporates a 100kHz - 250MHz HFsynthesizer and a high power amplifier.
NSG 2070 is compatible with all types of
power line and data line coupling options;
namely coupling/decoupling networks,
electromagnetic clamp and current
injection probe.
Test parameters are pre-programmed so
that standard procedures can be simply
invoked. The ability to create fully
customized tests with user-specified
parameters is also provided for more
detailed characterisation work.
Self-calibration
Calibration of the test rig as required by
IEC 61000-4-6 to ensure a constant
frequency output is simple with NSG 2070.
The instrument automatically and quickly
calibrates itself to the chosen coupling
method and stores the calibration table
for future reference.
Safety
Power-down is automatic in the event
of violation of any safety condition and
there is a stop button that can be used
to invoke an immediate power-down.
When operated under software control,
hitting any of the keys on the keyboard
during the test has the same effect. The
synthesizer and amplifier are processorcontrolled to guarantee safe, error-free
test procedures. The load-independent
output stage is short-circuit and opencircuit protected.
Controllability
Manual control of the NSG 2070 is via five
function keys and a series of LCD menus
which allow the engineer to calibrate the
test set-up, and program test procedures
simply by selecting built-in IEC 61000-4-6
test parameters, or by setting custom
levels. The RUN, PAUSE and STOP
buttons are used to control tests.
Software Control
The Windows-based software control
module WIN 2070 provides real-time
remote control of all the NSG 2070
functions, along with a whole suite of
additional test sequencing, editing, saving
and reporting tools. Using intuitive
Windows screens and a virtual instrument
front panel, engineers can set-up and run
single tests - just as under manual control
- or can sequence a whole series of tests
for automatic execution.
WIN 2070 includes a professional report
generator which can be used to produce
hard copy test reports automatically for
management, engineering or quality
records, or as compliance documents
to meet legal requirements.
IEC 61000-4-6 Test System
● Self contained package
● Can perform all standard test techniques
NSG 2070
Options
WIN 2070 WINDOWS™ software
CDN 721 Current injection probe (CIP)
INA 721 Calibration set for CDN 721
KEMZ 801 EM clamp, including cable
INA 725 Calibration set for CDN 725
CDN M3 / 32A Coupling network
CDN M5 / 32A Coupling network
CDN S4 Coupling network
CDN T4 Coupling network
MD 720 Monitor probe complete
IEC 61000-4-6 Test System
Bandwidth: 100kHz - 250MHz
Modulation frequency: 1kHz ± 1%
Step size: 1kHz - 100MHz
Operating modes: frequency sweep, pulse mode
Sweep modes: linear, numeric, percentage
Linearity: < +2dB, calibrated < ± 0.5dB
Input / Output impedance: 50Ω
Hold time: 2ms - 100sec
VSWR: < 1.5
Dynamic range: > 58dB
Distortion: > -17dB (referred to carrier frequency)
RF meter
Output range: -40dBm ... +10dBm
linearity: ±5%, from 0.166V to 1.66V
Modulation: amplitude modulation 0 - 100%
Frequency response: ±5%, from 100kHz - 250MHz 80% ≤ +5%
VSWR < 1.15 from 100kHz - 250MHz
Bandwidth: 100kHz to 250MHz
Distortion: < -20dB (relative to carrier frequency)
no signal deterioration or ringing
Linearity: ± 1.5dB, with calibration < ± 0.5dB
Input sensitivity: -40dBm to +10dBm
Power output: 85W max. (saturated)
Input / output impedance: 50Ω
Output VSWR: <1.2 (including 4dB attenuator)
Load impedance: from open to short circuit
Housing: 19” benchtop housing with prop feet
Size W x D x H mm 449 x 171 x 461
Weight: NSG 2070: 16kg approx.
Technical Specifications Synthesiser NSG 2070
Technical Specifications
Amplifier NSG 2070
Coupling Options
A range of application-specific
coupling/decoupling networks (CDNs) is
offered for use with the NSG 2070, for
power, data and telecom applications.
This coupling method is ideal for
repetitive testing for detailed design
characterisation, or volume compliance
work.
An electromagnetic clamp (EM-clamp)
can be used to couple the signal directly
to any power line or data line. It is not
application-specific, so this coupling
option is a good choice where many
different products are to be tested.
Schaffner's current injection probe is easy
to use and, unlike competitive units, is
capable of coupling signals right up to
IEC 61000-4-6 Level 3. Like the EMclamp, the current injection probe can be
used to couple the signal to any power
line or data line.
NSG 2070